Pole



O. M. KNOX Sept. 6,1927.

POLE

Filed 001..' ll. 1926 @www Patented Sept. 6, 1927.

UNITED STATES PATENT OFFICE, f

ORVILLE M. KNOX, OF KNOXBORO, ,NEW YORK, SSIGNOR OF ONE-THIRD TO LINCOLNG. ARCHER, OF KNOXBORO, NEW YORK.

POLE.

, Application filed October 11, 19726. Serial No. 140,973.

This invention relates to improvements in poles, designed especially forsupporting telephone, telegraph, lighting and other transmission lines,and has for its object to pro` vide powerful indestructible polesofrelatively light and cheapV construction, that areV formed of metal,preferably rolled steel or iron. poles by imposing upon the oppositefaces metal plates of novel design, which may also be produced in asimple and inexpensive Each pole and its re-' manner by rolling.inforcing members are especially designed for facilitating rapid,accurate and economipal fabrication, and wherein the lower portion ofthe pole which is embedded in the earth is provided with internal andexternal ribs or vanes for solidly ancho-ring, as well as forpreventing` the accidental rotation of the pole, when the latter' isysubjected to cer tain strains. A further object is to provide anall-metal pole of the class, which may take the place of, and affordgreaterstrength and dura-bility, than the short-life wooden poles incommon use, and which may, owing to the growing scarcity of suitabletimber be produced at greatly reduced cost. And al further object is toprovide poles of the class which are uniformly straight and which whenerected present neat and symmetrical appearance throughout the line.

.The invention relates particularly to improveniente in the poles shownand described in my United States Patent Numbered 1,270,625, dated June25,1918.

I attain these objects by the means set forth in the detaileddescription which follows, and as illustrated by the accompanyingtdrawing, in which- Y Figure l is an elevational' view ofthe completepole, to which my improvement is applied. Fig. v2is a top-plan viewofthe same. Fig. 3 is an enlarged broken longitudinal section, taken online 3-3 of Fig. Fig. 4 is a horizontal section't-aken on vline 4 4 ofFig..3. Fig. 5;is a similar view, ltaken on line .5 5 of Fig. 3. Fig. 6is an end view of the body of the main pole. And Fig. 7 is an end viewof one of the reinforcing plates. Y

In the drawing, 2 represents the angular body of the pole, which ispreferably L-shaped in cross-section. The body 2 is A further bject isto reinforce thefthe body effectedby the plates 3,

preferably made of rolled steel or iron, and

the leaves 2 thereof are preferably the same4 breadth and thicknessthroughout the length of the pole. The opposite faces, particularly ofthe bottom portion of the body 2, are reinforced by similar T-shapedplates or members V3 and 4, the said plates preferably bethe bottomofthe pole, and the members u 3 are independently mounted on the innerwalls ofthe body 2, as best seen in Figs. 2, 3, 4 and 5.V In practicethe plates l3 are about one-quarter the length of the pole 2. and areprovided especially for reinforcing the extreme lower portion of thebody, cerresponding parts of which are embedded in the earth, as shown.The plates 3 are preferably formed with central longitudinal stems orribs, which enable me to produce reinforcing plates of great strength byroliing, from relatively thin steel at comparatively low cost. By thisconstruction and arrangement, there is little danger of either the poleor the plates buckling or warping when the poles are subjected to windand wire-stretching strains. The plates 4 are substantially like theplates 3' in cross-section', and are preferably the same breadth andthickness, so that they maybe formed by the same rolling dies. Theplates 4 preferably extend upwardlyv past the middle of the bodyl 2, andare mounted independently upon the outer walls of the flanges 2, as bestseen in Figs; 1, 3 and 5.' The ribsbr stems 4 of the plates 4 faceoutwardly, and when these plates are securely fastened to thebody -2 bythe rivets 5 5', they ynot only supplement thereinforcement of the lowervend of but they also tend to stilfen and reinforcethe portion of thepole above the plates 3,1 thereby preventing undue flexing or' breakingand distorting of the medial portion of the pole. The flanges 2, abovethe tops of plates 4 are usuallypunched to facilitate the mounting ofseveral cross-arms, as 6 and 6, which support the wires (not shown), andsaid arms may be either permanently riveted, or detaeliably bolted tothe bod)7 9, as de- Sired.

Having thus described my invention, what I claim, isn

A, pole composed of a liody of substantiallT Lsl1ape in cross section,and reinforeingr plates secured to die inner and outer faces of each ofthe sides of the body, the plates seem-ed to tlie outer faces oi thebody being` of greater length than the inner platee, all of saidreinfm'cing platee having' outwarcll)r 'facing` longitudinal ribsextending` substantially throughout tlie length oi the plates and theribs on the saine side of the bothT being disalined, the outer Sideedges ol the bases of the outer reinforcingr plates being spaced ironithe adjacent outer sido edges ol tlio aides of the body and the innerside edges oil? the liasse of the outer rein- 'l'orving plates being'spaced from the angle oE the body, the ribs and all of Said edgesaiiordineY a multiplicity oi individual ground engaging; portionsWliereliy rotation of tlie body is prevented.

ln testimony whereof I affix my signature.

ORVILL M. KNGX.

